Waves of high school students across the country marched out of class on Wednesday to demand stricter gun laws in hopes of putting an end to school massacres once and for all.

This unprecedented National Walkout Day, which kicked off at 10 a.m. EST and will continue across the states at 10 a.m. local time, was sparked by the Parkland, Florida school shooting and fueled by the fire and fury of its articulate survivors.

The protest was initially supposed to be 17 minutes of silence — one minute for each of the victims gunned down in the Marjory Stoneman Douglas High School Valentine's Day massacre — but students are opting to stay out of class for much longer to rally for change.

These teens are so undeterred, even the threat of being suspended won't stop them from hitting the pavement to call on Congress to pass stricter, "common sense" gun control laws.

Ch-ch-check out some of the powerful reactions, images, and clips from #StudentsStandUp (below)!

i just got woken up by the sound of local high school students marching down my street chanting "guard your kids, not your guns". i love the smell of teenage revolution in the morning. ✊ #nationalwalkoutday#studentsstandup
— radical sandwich anarchy 🖕🥪🖕 (@kinaisokay) March 14, 2018

The young people of this generation give me so much hope. Are u listening @GOP? Time for gun laws to change. And for you 2A-ers, relax, no one is saying you cant own a gun, your right to ‘bear arms shall not be infringed’. Just looking for common sense reform! #NationalWalkoutDayhttps://t.co/jB7NCb0MJj
— Chris Evans (@ChrisEvans) March 14, 2018

We are walking out for 17 minuets at 10:00 am today for the 17 lives lost in Parkland. This is not for fun, or to skip class, this is to remeber the students and to protest congress to finally DO something. We have a voice! #StudentsStandUp
— Jack Holsopple (@jeholsopple121) March 14, 2018

Why did Nickelodeon going off the air in support of #NationalWalkoutDay make me tear up? Something about the network that brought my kids Blue's Clues sticking with the young people who were watching it and Nick Jr. as toddlers is really moving.
— STEVE HUFF (@SteveHuff) March 14, 2018

Student speaks in front of the U.S. Capitol on #NationalWalkoutDay: "Their right to own an assault rifle does not outweigh our right to live. The adults have failed us. This is in our hands now, and if any elected official gets in our way, we will vote them out." pic.twitter.com/VEdAcLnuOI
— NBC News (@NBCNews) March 14, 2018

Covering a walkout this morning at an elementary school in Virginia, and the 11-year-old organizers had a press packet ready for me. pic.twitter.com/eeElhGciid
— Lois Beckett (@loisbeckett) March 14, 2018